Triple, Quad, or Integrated Tests for Birth Defects: References

ACOG Practice Bulletin: Screening for Fetal Chromosomal Anomalies, Number 77, January 2007. Reaffirmed 2013.

Messerlian GM, et al. First Trimester Combined and Integrated Tests for Screening for Down Syndrome and Trisomy 18. Accessed September 6, 2015. http://www.uptodate.com/contents/first-trimester-combined-test-and-integrated-tests-for-screening-for-down-syndrome-and-trisomy-18/.

Gibbs R, Karlan B, Haney A, Nygaard I. Danforth’s Obstetrics and Gynecology. 9th ed. Lippincott Williams and Wilkins, 2008. Accessed July 4, 2012. http://www.ovidsp.tx.ovid.com.

Lockwood C. Guidelines for Perinatal Care. 7th ed. AAP and ACOG. 2012.